I have gone through 2 pool guys in the last few years. Last summer I had to get my pool fixed probably 4 times with the pool guy I had at the time. It never was fixed. My roommate found Waterboy online and he came over and cleaned and fixed my disaster pool for a $100. It was an easy fix and he diagnosed it right away. I hired him right away and I am very happy I did. Ryan, the owner, knows pools!